It sifts from leaden sieves

It sifts from Leaden Sieves.
It powders all the Wood -
It fills with Alabaster Wool
The Wrinkles of the Road -

It scatters like the Birds -
Condenses like a Flock,
Like Juggler's Flowers situates
Opon a baseless Arc.

It traverses, yet halts,
Disperses while it stays -
Then curls itself in Capricorn
Disputing that it was